Wrench



. Feb. 23 1926.

J. R,, SIEGER WRENCH Filed Dec. 18, 1924 nvmvron John R S/eyer' 67% Mm? s? ,1 rmR/v r Patented 23, 192%.

UNITE/j I r on.

JOHN R. 'SIEGER, OF MINNEAPOLIS, MINNESOTA.

WRENCH.

Application filed December 18, 1924. Serial m. 756,680.

Minnea aolis in the count of Honneiin l a and State of innesota have invented certain new and useful Improvements in renches of which the following is a specification.

My invention relates to wrenches, and has for its object to provide a wrench which may be (prickly and eli'ectively adjusted to fit various sizes of objects operated upon.

Another object of the invention resides in providing a fixed jaw and a movable jaw having ratchet teeth thereon and a dog pivoted to said fixed jaw adapted to engage said ratchet teethto hold said movable jaw from movement relative to said fixed jaw.

A still further object of the invention resides-in providing a release for said dog capable of being operated by the exertion of pressure thereon whereby said dog may be released to permit of adjusting the wrench.

A feature of the invention resides in con struction said movable with a shank onwhich the ratchet teeth are formed, and of constructing said release in such a manner that the same passes around said shank so that the engagingportion of said release lies along the exterior surface of said shank.

Other objects of the invention reside'in the detailed construction of the same as eisclosed in the following specification, drawing, and claims.

In. the drawings illustrating my invention in one form:

Fig. 51 is an isometric view of one form of my invention in actual use;

Fig. 2 is an enlarged fragmentary view:

of the invention illustrated in Fig. l;

is a sectional view taken on line 33 of Fig. 2;

Fig. ,4 is a plan view of a modified form of a wrench with a portion removed to illustrate the interior construction thereof; and

Fig. 5 is an isometricview of the jaw guide shown in Fig. 4.

I11 the drawings I have illustrated my invention as particularly adapted to be used as a pipe wrench, tho it can be readily understood that tho the invention is most readily used in this manner the same can be also used in conjunction with other wrenches and other devices.

My invention comprises a fixed jaw 10 and a movable jaw 11. The jaw 10 is made inner edge of the shank- 15.

with a slot 12 which fits over a tongue formed on the end of a handle 14. jaw 11 is integrally attached to a shank 1.5 which is ol'lsctin relation thereto so that said shank may lie parallel to the handlc li when in its assembled position. Around the shank 15 is positioned a ii-shaped guide 16 which is formed with a back 17 and two arms 18. Between these arms are positioned two'bars l9 and 20 which toeether with the arms 16 and the back 17 Iorm a guideway thru which the The arms 18 straddle.

shank 15 extenes. the handle 14 and a, re pivoted to it by means of a bolt 2].;

The device for holc ing the jaw 11 in adjusted position relative to jaw 10 can best be seen in Fig. 2. As willbe noted the jaw 10.

extends outwardly beyond the handle 1% as indicated at 22. To this portion of said jaw is pivoted a dog 23 which is adapted to engage ratchet teeth 24 formed along the V This dogris belt in engagement therewith by means of a leai spring 26 riveted to the. handle 1%. A similar spring 27 also pivoted to the handle 1% at the same; place as spring 26 and engaging the bar QOholds the jaw 11 so that said jaws are always in engaging, position relativeto the ob ect upon which the wrench is to beused.

in the guide 16 a slot 5 is provided which extends-only across the back 1'7. Along the sides 18 are formed two groovesor depressions 36 which serve as guideways for the release 29. The release29 is constructed of wire as shown in the drawings and has the ends thereof bent inwardly to form two hooks 37 and 38 which are adapted to engage within. slots 39 extending along the dog 23 on each side thereof. In asseniolin-g the device the dog first pivoted to the j aw 10. The release 29 is next slid into the grooves 36 thru'the slot 35, and the assemblage placed upon the handle i l, the hooks 38 being siinultaneously slid into the grooves 39. Upon being properly positioned the bolt 21 is inserted after which the springs 26 and 27 are attache-t. By sliding the aw shank 15 into the guide 16, the device is ready to be used. This device is advantageous in that a neater construction is provided in which the greater portion of the release and dog are concealed, thereby preventing the wrench from being readily clogged with dirt. At the same time a somewhat cheaper construction is provided.

The

The use of the device is obvious. The release 29 is first depressed, which pe mits the movable jaw 11 being moved along the guide 16. The same is then adjusted until the jaws l and 11 engage the object upon which the device is to operate. Upon removing the pressure from the release, dog 23 engages one of the ratchet teeth 2% which holds jaw 11 from outward movement. Upon grasping handle i l the object positioned between jaws'lO and 11 may be rotated in the usual manner.

If desired the guide 16 may be made from a metal stamping as shown in Fig. 5. A portion of the metal of the arms 18 indicated at 40 on both sides thereof issevered from the major portion of said arms along an edge thereof and bent inwardly towards each other as clearly indicated in Figs. l and to form oppositely facing lugs. These lugs take the place of the bars 19 and 20 in the other form of the invention.

My invention is adi 'antageous in that it provides a simple and inexpensive wrench construction whereby the same may be quickly and conveniently adjusted to lit size of object which it is desired to turn or grip, The device has the releasepositioned so that it is convenient to manipulate thereby making th-eadjustment very rapid and convenient. The device can be made at a cost not to appreciably exceed the cost of the ordinary wrench.

In compliance with the patent statutes, I have described my invention in the form which I consider the best embodiment thereoi, but 1 desire tohave it understood that the in ention may be put to other uses and constructed in different forms within the scope of the following claims.

Claims:

1. i wrench comprising a iixed jaw, a movable jaw, a shank attached thereto, ratchet teeth formed on said shank, a dog pivoted to said lixed jaw adapted to engage said ratchet teeth, a U-shaped guide envelopinn said shank and secured to said fixed aw, said guide being formed with a pairoi inwardly extending grooves communicating with an opening in said guide at the ends of saidgrooves remote from said aw, a U- shaped release surrounding said shank being 7 positioned within said grooves and lying between saidshank and the walls of said guide with the end thereof protruding through said opening, said dog being formed with outwardly-facing simularly situated slots and inwardlyextending hooks formed on said release adapted to engage within said slots.

2. A wrench comprising a fixed jaw, a handle secured thereto, a movable jaw, a shank attached to said movable jaw and lying adjacent said handle, ratchet teeth formed on said shank, a dog pivoted to said fixed jaw adapted to engage said ratchet teeth, a U-shaped guide having a back extending along said shank and arms extending across the same and pivoted to said fixed jaw, said back being formed with a transverse slot, guideways formed on said arms extendin across said shank and communi h said slot, a release movable along said g i ueways and adapted to extend into s: 'd slot, said dog being formed with oppositelyiacing longitudinal grooves, and inwardly bent hooks formed on the end 01 said release adapted to engage said dog within l slots for disengaging the same from said ratchet teeth.

A wrench comprising a fixed jaw, a handle secured thereto, a movable jaw, a shank termed thereon lying adjacent said handle, ratchet teeth formed on said shank, a dogpivoted to said lined jaw adapted to en 'g'e said rate-net teeth, a U-shaped guide .(1 of sheet-metal pivoted to said handle, inwardly turned lugs form-ed on the ends of the guide to hold said guide slidably mounted relative to said shank, outwardly pressed grooves formed along the side-s of the guide extending radially from the point of pivot thereof, said guide being form-ed with an opening connecting said grooves at the ends thereof said do bein formed with outwardly-facing longitudinally extending open-ended slots, a U-shaped wire release positioned within said slots between said guide and said shans, having a thumbengaging portion projecting thru said opening, and inwardly bent hooks formed on said release engaging within the slots in said dog and adapted to be inserted therein thru the open ends thereof.

In testimony whereof I aflix my signature.

' JOHN S. EGER. 

